This story appears in the July 2013 issue of National Geographic magazine ... of the past 4.5 billion years in a deep freeze beyond Neptune, inside the comet Wild 2 (pronounced VILT-two).

Earth’s beautiful northern and southern lights are the result of auroras: when high-energy charged particles from the sun hit gases in our upper atmosphere, making them glow in brilliant colors as ...

The James Webb Space Telescope helped scientists confirm the celestial lights on one of the most mysterious planets in our solar system.

Experts are not sure why Neptune's auroras can be seen around the planet's "mid-latitudes," and not the north and south poles ...